The main milling cutter used for typical arthroplastic surgery robot, ROBODC system is 7.8 mm milling cutter. this cutter was used in case of traditional total knee arthroplasty, but 7.8mm milling cutter is not appropriate for newest surgical technique, MIS(minimally invasive Surgery). Generally, cutting method for MIS is tunnel cutting and cutter of cantilever type and small diameter is must be developed for MIS. Generally, Main problem of cutting system is chattering due to vibration of cutter by rotation and numerical analysis using finite element method was used for identifying chattering problems in this study. shaft length, cutter length, diameter and so on were proposed by axis displacement, stress, strain analysis through numerical analysis.

Abstract
 1. 서론
 2. 해석대상 선정 및 모델링기법
  2.1 수술용 cutter의 형상 및 기계적 물성치
  2.2 유한요소 해석 모델링 및 경계조건
 3. cutter의 유한요소 해석
  3.1 해석 변수 및 CASE 선정
  3.2 수술용 cutter의 채터링 특성해석
  3.3 하중의 크기 변화에 따른 채터링 특성
  3.4 고유진동수 해석 및 안전속도 확립
  3.5 최적 모델에 대한 채터링 특성 분석
 4. 결론
 후기
 참고문헌

• 안영명(서일대학 자동차과 부교수) | Young-myung Ahn
• 이창훈(큐랙소(주) 생산개발팀 팀장) | Chang-Hun Lee